Spitzer, Herbert F. (Herbert Frederick), 1906-  Spitzer, Herbert F. (Herbert Frederick), 1906- <br/><br/>
Activities for the enrichment of arithmetic. 

 - St. Louis :  Webster Divion : McGraw-Hill,  Webster Divion : McGraw-Hill,  1964. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Arithmetic -- Study and teaching.--Arithmetic -- Study and teaching.<br/>Arithmetic -- Problems, exercises, etc.--Arithmetic -- Problems, exercises, etc.